chrX-54440774-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_058163.3(TSR2):​c.166C>T​(p.Arg56Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000505 in 1,187,668 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R56L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.0000019 ( 0 hom. 1 hem. )

Consequence

TSR2
NM_058163.3 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.410
Variant links:
Genes affected
TSR2 (HGNC:25455): (TSR2 ribosome maturation factor) The protein encoded by this gene appears to repress the transcription of NF-kappaB and may be involved in apoptosis. Defects in this gene are a cause of Diamond-Blackfan anemia. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14756957).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSR2NM_058163.3 linkuse as main transcriptc.166C>T p.Arg56Cys missense_variant 2/5 ENST00000375151.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSR2ENST00000375151.5 linkuse as main transcriptc.166C>T p.Arg56Cys missense_variant 2/51 NM_058163.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000360
AC:
4
AN:
111254
Hom.:
0
Cov.:
23
AF XY:
0.0000299
AC XY:
1
AN XY:
33456
show subpopulations
Gnomad AFR
AF:
0.000130
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000256
AC:
4
AN:
156175
Hom.:
0
AF XY:
0.0000218
AC XY:
1
AN XY:
45919
show subpopulations
Gnomad AFR exome
AF:
0.000249
Gnomad AMR exome
AF:
0.0000408
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000186
AC:
2
AN:
1076414
Hom.:
0
Cov.:
29
AF XY:
0.00000289
AC XY:
1
AN XY:
345530
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000302
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000340
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000360
AC:
4
AN:
111254
Hom.:
0
Cov.:
23
AF XY:
0.0000299
AC XY:
1
AN XY:
33456
show subpopulations
Gnomad4 AFR
AF:
0.000130
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpApr 29, 2024Variant summary: TSR2 c.166C>T (p.Arg56Cys) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 2.6e-05 in 156175 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.166C>T in individuals affected with Diamond-Blackfan Anemia 14 With Mandibulofacial Dysostosis and no experimental evidence demonstrating its impact on protein function have been reported. No submitters have cited clinical-significance assessments for this variant to ClinVar. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.57
D
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.0089
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
0.83
L
MutationTaster
Benign
0.56
N
PrimateAI
Benign
0.30
T
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.069
Sift
Benign
0.082
T
Sift4G
Uncertain
0.034
D
Polyphen
0.97
D
Vest4
0.11
MVP
0.10
MPC
0.74
ClinPred
0.19
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.24
gMVP
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs374472583; hg19: chrX-54467207; COSMIC: COSV100911228; COSMIC: COSV100911228; API